Solipsism is a philosophical theory, which asserts that nothing exists but the individual’s consciousness. At first, it seems silly, but if you think about it, it really is impossible to verify anything but your own consciousness.
To check this out, take a moment to recall all the dreams that you have experienced in your life. Is it not possible that everything around you is nothing but an incredibly intricate dream?But, you may say, there are people and things around us that we cannot doubt because we can hear, see, smell, taste and feel them, right? Yes, and no. People who take LSD, for example, say that they can touch the most convincing hallucinations, but we do not claim that their visions are a “reality”. Your dreams can simulate sensations as well. After all, what you perceive is just a product of the information processing that takes place in different sections of your brain.
As a result, which parts of existence can we not doubt? Probably none. Each of us can only be sure of their own thoughts.
Solipsism is the perspective that you’re the character in the dream, and the dream world is either a projection of you, some other kind of illusion, or simply unknowable. Other people are not real in the same way you are. Your own mind is the basis for knowledge. Even though it’s impossible to prove it wrong because solipsism is not objectively falsifiable.
The perspective that you’re the character in the dream world and the dream world is solid, real, and objective. This is also called an Objective Reality. An OR person wouldn’t normally think of the physical world as a dream at all — they accept the (socially conditioned) notion that the dream world is reality itself. The objective world itself is seen as the basis for knowledge. Note that there can be no proof whatsoever that this is how reality actually works; it’s one giant unprovable assumption. It’s also not falsifiable.
So are you really sure what you know or understand is the reality? Is the truth? Of course, your ego tells you – “Yes it is.”